Collings, Gilbeart H.
Commercial fertilizers : their sources and use / Gilbeart H. Collings. - 5th ed. - New York : Mcgraw-Hill book co., c 1962. - 617 p. : ill. ; 23 cm.
338 338
Fertilizers.
631.8 / C629c
Commercial fertilizers : their sources and use / Gilbeart H. Collings. - 5th ed. - New York : Mcgraw-Hill book co., c 1962. - 617 p. : ill. ; 23 cm.
338 338
Fertilizers.
631.8 / C629c